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UNITED STATES .PATENT OEErcE..

GEORGE w. MILLER, OE wA'rKINs, 'NEW YORK.

OOMB'INED VENTIKLATOR A ND DAMPER.-

SPECIFICATION forming part of Letters Patent No. 377,633, dated February?, 1888.

Application mea July 21, we?.

To all whom it may concern:

Beit known that I, GEORGE W.' MILLER, a citizen of the United States of America, residing at Watkinsin the county of Schuyler and State of New York, have invented certain new and useful Improvements in Combined Ventilator and Damper; and I do hereby declare the following to be afull, clear, and exact .description of the invention, such as will enable others skilled inthe art to whichit appertains v to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

- My invention relates to certain new and useful improvements in combined dampers and ventilators for stove-pipes, the object of my invention being to provide a cheap, simple, and effective means which can be employed for regulating the draft of stoves and Ventilating compartments; and my invention consists in the construction and combination of the parts, as will be hereinafter fully set forth, and specically pointedout in the claims.

In the accompanying drawings, which illustrate my invention, Figure 1 is a perspective view of a stove-pipe,showing my improvements applied thereto; and Fig. 2 is a vertical sectional view.

A refers to a stovepipe of ordinary construction, one side of which is cut away, so as to provideanopeningtherein.A Theupperand lower edges of this opening taper toward each other to a point near the center of the pipe. The opening formed in the stove-pipe is covered by a shield, B, which consists of a flat front portion, b, to which are attached the top and side pieces, b', which are preferably made of a single piece. The side pieces, b', extend over the side of thel pipe, and are secured to said pipe by rivets or bolts c. If desirable, the shield B 'may `loe made of a casting, so as to be formed of a single piece, and the front por-I tion. thereof projects beyond the side of the pipe A. The lower 4portion of the shield is left open, so that an air-passage will be prov vided, through which the air can pass from the compartment or room to the interior of the stove-pipe.

C refers to the damper, which maybe semil Serial No. 244,909. (No model.)

brought to a position shown by dotted lines, 4

Fig. 2, the weighted operating-handle will be beyond the center and Will -hold the same closed. The damper may be made of malleable iron, sheet metal, or the same may be cast. The side pieces of the shield are provided with recesses'd, through which the supporting-pivots will pass.

When itis desired to use the device asa ventilating medium, the damperr is turned either whollyior partially, as shown in dotted lines, Fig. 2, when the upward draftin the chimney will cause the air to be drawn through the opening in the lower portion of the shield out of the compartment or room through the stovepipe, and vwhen the stove-pipe is'used for conveyingsmoke the damper will be placedinaposition shown in full lines, or partiallyso, so as to leave the stove-pipe unobstructed.l Of

course the damper may be placed at intermediate positions, so as to regulate the draft and ventilate the room at the same time. e I am aware that prior to my invention it has been proposed to provide stove-pipes with sliding dampers, so as to form openings in the stove-pipe, and I do not cl'aim such as my in-V vention; but v What I claim as new, and desire to secure by Letters Patent, is-' l. In combination with a stove-pipe having an opening formed therein, a shield attached 'over said opening in the stove-pipe, so asto leave an opening at the lower portion of said shield communicating with the interior of the pipe, and a damper pivotally attached to the interior of the stove-pipe on aline with said shield, substantially as shown, and for the purpose set' forth.

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2. In combination with a stove-pipe having In testimony whereof I affix my signature in an opening formed therein, ashield rigidly sepresence of two Witnesses.

cured thereto and provided with side and top projecting Walls, and a curved damper pivot- GEORGE V MILLER' 5 ally secured within the pipe and provided with Witnesses:

a Weighted operating-lever, substantially as 'DAVID H. SMITH, shown, and for the purpose set forth. I). H. HAWES. 

